Coil spring for overrunning spring clutches
US5799931A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 1996 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Oct 11, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F15/32
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A coil spring (10) for an overrunning spring clutch assembly wherein the coil spring (10) includes a crossover coil (20) having a longitudinal crossover gap (24) formed therein, and a dynamic balance weight (40) secured in combination with one of the internally opposed surfaces (24s) of the longitudinal crossover gap (24). The dynamic balance weight (40) is configured such that, when assembled in combination with a central arbor (32) and coaxial clutch members (34) of the overrunning spring clutch assembly, the dynamic balance weight (40) is spaced apart from the central arbor (32) and each of the clutch members (34). Furthermore, the dynamic balance weight (40) is fabricated from a material having a density .rho..sub.BW which is greater than the density .rho..sub.CC of the base material from which the crossover coil (20) is fabricated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.